US6176726B1 - Electrical connection box including a connector housing and mating connector - Google Patents
Electrical connection box including a connector housing and mating connector Download PDFInfo
- Publication number
- US6176726B1 US6176726B1 US09/471,351 US47135199A US6176726B1 US 6176726 B1 US6176726 B1 US 6176726B1 US 47135199 A US47135199 A US 47135199A US 6176726 B1 US6176726 B1 US 6176726B1
- Authority
- US
- United States
- Prior art keywords
- retainer
- connection box
- inside wall
- mating connector
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
Definitions
- the present Invention relates to an electrical connection box for mounting in an automobile or similar vehicle. More specifically, it is directed to such a box having a double-engagement structure which prevents a mating connector, which has been inserted into the connector housing, from disengaging therefrom.
- Japanese laid-open utility model 4-36788 discloses a conventional electrical connection box of this type.
- a locking member is pivotally mounted on a connector housing disposed on the electrical connection box.
- a plate spring engagement section is located on the locking member.
- a plate spring is elastically disposed between the plate spring engagement section and the connector housing. In this electrical connection box, once the connector is inserted and fitted in the connector housing, the locking member is pivoted to the engagement position, working against the action of the plate spring. This engages and locks the connector.
- the object of the present Invention is to overcome the problems of the foregoing conventional technology and to provide an electrical connection box which eliminates the need for dedicated equipment and reduces production costs.
- the present Invention provides for a double locking mechanism for securing the mating connector with the connecting housing.
- the electrical connection box comprises a main case, a connector housing therein, and a mating connector in the connector housing.
- a mating connector in the connector housing.
- a support section is located either on the first inside wall or a second inside wall, the latter being spaced apart from the first inside wall.
- a retainer in the support section which engages the mating connector and prevents it from slipping out of the connector housing.
- the engagement section advantageously comprises a claw on the first inside wall and a protuberance on an adjacent wall of the mating connector. When installed, the protuberance on the mating connector is engaged by the claw on the first inside wall.
- the support section includes an insertion opening and the retainer is an elongated member having a cross section which fits snugly in the insertion opening.
- the retainer extends through the insertion opening and bears against the mating connector. As a result, the mating connector is retained in the housing by both the engagement section and the retainer.
- the support section is located on the second inside wall, the fact that it is remote from the first wall adds security to the retention of the mating connector.
- the mating connector is held from both sides.
- each support section is provided with a pair of guide walls within which the retainer is held. It is also useful to have a guide projection partially occupying at least one insertion opening. This leaves a space constituting the remainder of the insertion opening and the cross section of the retainer is of substantially the same shape as the space. Most usefully, the cross section of the retainer is the same size or slightly larger than the space, whereby the retainer is held firmly therein. Most advantageously, the guide projection is in the form of an inverted trapezoid.
- the retainer may comprise a pair of support plates, spaced apart from each other in a direction transverse to the insertion direction of the retainer and joined together by a connecting piece therebetween.
- the Invention also contemplates the provision of a flexible piece on the connecting piece and adjacent a positioning end of the retainer.
- the flexible piece includes at least one stop which bears against the guide walls when the retainer is in the support section.
- FIG. 1 is a fragmentary plan view showing an electrical connection box in accordance with the present Invention
- FIG. 2 is an exploded partial cross section illustrating the connector housing and its mating connector wherein the connector housing is taken along line C—C of FIG. 1;
- FIG. 3 is a view, similar to that of FIG. 2, wherein the mating connector has been inserted into the housing wherein the connector housing is mated with the mating connector and is taken along line C-D of FIG. 1;
- FIG. 4 is similar to FIG. 3 showing the guide projection and retainer in the insertion opening
- FIG. 5 is a plan view of the retainer
- FIG. 6 is an enlarged plan view of the positioning end of the retainer taken along line B—B of FIG. 5;
- FIG. 7 is an enlarged transverse cross section of the retainer along line A—A of FIG. 5;
- FIG. 8 is an enlarged traverse cross section of an alternate embodiment of the retainer
- FIG. 9 is a fragmentary plan view showing an alternative embodiment of an electrical connection box in accordance with the present Invention.
- FIG. 10 is an exploded partial cross section illustrating the alternative embodiment of the connector housing and its mating connector taken along line E—E of connector housing in FIG. 8 .
- main case 11 carries connector housings 12 and 13 .
- Perimeter walls 16 and 17 enclose male terminals 14 and 15 , respectively.
- Claws 18 and 19 are mounted on the inside of perimeter walls 16 and 17 , respectively.
- Support sections 25 and 26 are provided with guide walls 27 and connecting walls 28 .
- mating connector 20 is formed with protuberance 21 and restricting portion 22 . It is inserted into the cavity of connector housing 12 and the female connectors (unnumbered) engage male terminals 14 . Protuberance 21 is engaged by claw 18 , thereby locking mating connector 20 to connector housing 12 . Restricting portion 22 is beneath insertion opening 29 , and guide projection 30 , of inverted trapezoidal shape, projects partially into insertion opening 29 .
- retainer 31 is inserted into support section 25 and bears against the lower portion of trapezoidal guide projection 30 . It also bears against restricting portion 22 , thereby securing mating connector 20 in housing 12 .
- mating connector 20 is held in housing 12 both by the interaction of claw 18 and protuberance 21 , as well as retainer 31 in support section 25 .
- retainer 31 comprises support plates 32 spaced apart from each other and joined by connecting plate 33 .
- cavity 35 is provided around flexible piece 36 and stop 37 .
- Flexible piece 36 includes stops 37 in trapezoidal configuration.
- stops 37 of flexible piece 36 contact the inner walls of insertion opening 29 , they are distorted inwardly to allow the stop to pass through. Once this has occurred, stop 37 resumes its original shape and rear shoulders 38 bear against the perimeter of insertion opening 29 , thereby securing both the retainer and the mating connector.
- retainer 31 In order to assist insertion of retainer 31 in opening 29 , the end of retainer 31 opposite positioning end 34 is pointed, as shown in FIG. 5 . If retainer 31 is to be removed, it must be pulled in its insertion direction so that stops 37 will be bent inwardly and positioning end 34 will be permitted to pass through the other insertion opening. Thus, mating connector 20 is doubly secured in housing 12 .
- the cross section of retainer 31 may be varied so that instead of connecting plate 33 being located between the centers of support plates 32 , it can be connected at the ends thereof.
- Protuberance 21 can be solid as shown in the drawings or hollow in a U-shape when viewed from above.
- Retainer 31 need only fit through opening 29 , therefore, it may be U-shaped such that the upper portion of retainer 31 mates with the channel formed by guide projection 30 and the bottom of retainer 31 conforms to the shape of the bottom of opening 29 as shown in FIG. 8 .
- FIGS. 9 and 10 Another alternative embodiment is shown in FIGS. 9 and 10 wherein a wall 18 ′ surrounds claw 18 and protects male terminals 14 from wall 21 ′ upon which protuberance 21 is mounted.
- Wall 21 ′ as shown, is connected to mating connector 20 at the top but not at the bottom. Thus, wall 21 ′ hangs and fits into the cavity made by wall 18 ′.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
An electrical connection box having a main case, a connector housing therein, and a mating connector in the connector housing. There is an engagement section on one inside wall of the connector housing which engages the mating connector. There is also a support section on an inside wall of the connector housing with a retainer inserted therein. The retainer bears against at least a portion of the mating connector, thereby preventing it from slipping out of the connector housing.
Description
This Application claims the benefit of the priority of Japanese 10-372618, filed Dec. 28, 1998.
The present Invention relates to an electrical connection box for mounting in an automobile or similar vehicle. More specifically, it is directed to such a box having a double-engagement structure which prevents a mating connector, which has been inserted into the connector housing, from disengaging therefrom.
Japanese laid-open utility model 4-36788 discloses a conventional electrical connection box of this type. A locking member is pivotally mounted on a connector housing disposed on the electrical connection box. A plate spring engagement section is located on the locking member. A plate spring is elastically disposed between the plate spring engagement section and the connector housing. In this electrical connection box, once the connector is inserted and fitted in the connector housing, the locking member is pivoted to the engagement position, working against the action of the plate spring. This engages and locks the connector.
However, in the conventional electrical connection box described above, dedicated equipment is needed to elastically dispose the plate spring in the electrical connection box and to mount the locking member. This increases production costs. Furthermore, since a plate spring is required, this also increases parts costs.
The object of the present Invention is to overcome the problems of the foregoing conventional technology and to provide an electrical connection box which eliminates the need for dedicated equipment and reduces production costs. Specifically, the present Invention provides for a double locking mechanism for securing the mating connector with the connecting housing.
The electrical connection box according to the present Invention comprises a main case, a connector housing therein, and a mating connector in the connector housing. There is an engagement section on a first inside wall of the connector housing which is in engagement with the mating connector. A support section is located either on the first inside wall or a second inside wall, the latter being spaced apart from the first inside wall. There is also provided a retainer in the support section which engages the mating connector and prevents it from slipping out of the connector housing.
The engagement section advantageously comprises a claw on the first inside wall and a protuberance on an adjacent wall of the mating connector. When installed, the protuberance on the mating connector is engaged by the claw on the first inside wall.
In a preferred form of the Invention, the support section includes an insertion opening and the retainer is an elongated member having a cross section which fits snugly in the insertion opening. The retainer extends through the insertion opening and bears against the mating connector. As a result, the mating connector is retained in the housing by both the engagement section and the retainer.
It is desirable that there be two support sections on either the first inside wall or the second inside wall. Such support sections are spaced apart from each other and it is advantageous that each has an insertion opening. In such a case, the retainer extends through both insertion openings in order to secure the mating section in the housing.
It has been found useful to provide the mating connector with a restricting portion which is adapted to underlie the retainer. Thus, the latter bears against this portion and thereby holds it within the housing.
If the support section is located on the second inside wall, the fact that it is remote from the first wall adds security to the retention of the mating connector. In this construction, the mating connector is held from both sides.
In a particularly desirable form of the Invention, each support section is provided with a pair of guide walls within which the retainer is held. It is also useful to have a guide projection partially occupying at least one insertion opening. This leaves a space constituting the remainder of the insertion opening and the cross section of the retainer is of substantially the same shape as the space. Most usefully, the cross section of the retainer is the same size or slightly larger than the space, whereby the retainer is held firmly therein. Most advantageously, the guide projection is in the form of an inverted trapezoid.
The retainer may comprise a pair of support plates, spaced apart from each other in a direction transverse to the insertion direction of the retainer and joined together by a connecting piece therebetween.
The Invention also contemplates the provision of a flexible piece on the connecting piece and adjacent a positioning end of the retainer. The flexible piece includes at least one stop which bears against the guide walls when the retainer is in the support section. Preferably, there is a pair of stops, each extending transversely to the insertion direction beyond the connecting piece. Thus, when the retainer is inserted into the insertion opening, the flexible piece is distorted thereby and, when it is through the insertion opening, its resilience causes the stop to resume its original shape, thereby securing the retainer in the support section. In a particularly preferred form of the Invention, the flexible piece is in the form of a trapezoid with the narrow end leading in the insertion direction. Thus, the angle of the trapezoid facilitates the distortion of the stop so that it can readily pass through the insertion opening and resume its original shape thereafter.
In the accompanying drawings, constituting a part hereof, and in which like reference characters indicate like parts,
FIG. 1 is a fragmentary plan view showing an electrical connection box in accordance with the present Invention;
FIG. 2 is an exploded partial cross section illustrating the connector housing and its mating connector wherein the connector housing is taken along line C—C of FIG. 1;
FIG. 3 is a view, similar to that of FIG. 2, wherein the mating connector has been inserted into the housing wherein the connector housing is mated with the mating connector and is taken along line C-D of FIG. 1;
FIG. 4 is similar to FIG. 3 showing the guide projection and retainer in the insertion opening;
FIG. 5 is a plan view of the retainer;
FIG. 6 is an enlarged plan view of the positioning end of the retainer taken along line B—B of FIG. 5;
FIG. 7 is an enlarged transverse cross section of the retainer along line A—A of FIG. 5;
FIG. 8 is an enlarged traverse cross section of an alternate embodiment of the retainer;
FIG. 9 is a fragmentary plan view showing an alternative embodiment of an electrical connection box in accordance with the present Invention; and
FIG. 10 is an exploded partial cross section illustrating the alternative embodiment of the connector housing and its mating connector taken along line E—E of connector housing in FIG. 8.
As shown in FIGS. 1 to 3, main case 11 carries connector housings 12 and 13. Perimeter walls 16 and 17 enclose male terminals 14 and 15, respectively. Claws 18 and 19 are mounted on the inside of perimeter walls 16 and 17, respectively. Support sections 25 and 26 are provided with guide walls 27 and connecting walls 28.
As shown particularly in FIGS. 2 and 3, mating connector 20 is formed with protuberance 21 and restricting portion 22. It is inserted into the cavity of connector housing 12 and the female connectors (unnumbered) engage male terminals 14. Protuberance 21 is engaged by claw 18, thereby locking mating connector 20 to connector housing 12. Restricting portion 22 is beneath insertion opening 29, and guide projection 30, of inverted trapezoidal shape, projects partially into insertion opening 29.
As can best be seen in FIG. 4, retainer 31 is inserted into support section 25 and bears against the lower portion of trapezoidal guide projection 30. It also bears against restricting portion 22, thereby securing mating connector 20 in housing 12. Thus, mating connector 20 is held in housing 12 both by the interaction of claw 18 and protuberance 21, as well as retainer 31 in support section 25.
Referring more particularly to FIGS. 5, 6, and 7, retainer 31 comprises support plates 32 spaced apart from each other and joined by connecting plate 33. At positioning end 34, cavity 35 is provided around flexible piece 36 and stop 37. Flexible piece 36 includes stops 37 in trapezoidal configuration. Thus, when retainer 31 is inserted into support section 25, positioning end 34 trails. When stops 37 of flexible piece 36 contact the inner walls of insertion opening 29, they are distorted inwardly to allow the stop to pass through. Once this has occurred, stop 37 resumes its original shape and rear shoulders 38 bear against the perimeter of insertion opening 29, thereby securing both the retainer and the mating connector. In order to assist insertion of retainer 31 in opening 29, the end of retainer 31 opposite positioning end 34 is pointed, as shown in FIG. 5. If retainer 31 is to be removed, it must be pulled in its insertion direction so that stops 37 will be bent inwardly and positioning end 34 will be permitted to pass through the other insertion opening. Thus, mating connector 20 is doubly secured in housing 12.
Although only a limited number of aspects of the present Invention has been expressly described, such modifications as would be apparent to the person of ordinary skill may be made without departing from the scope or spirit thereof. For example, although two support sections 25 and 26 are shown on perimeter wall 16 of the connector housing, a single support section may be used or three or more such sections can be provided. The support sections are shown as being located on the same side of the connector housing as is claw 18. However, the support section(s) can be located on the opposite side of perimeter wall 16. This particular structure, with claw 18 and protuberance 21 in engagement on one side and retainer 31 in support section 25 on the other side, secures the mating connector in the housing in a particularly stable manner. Also, the cross section of retainer 31 may be varied so that instead of connecting plate 33 being located between the centers of support plates 32, it can be connected at the ends thereof. Protuberance 21 can be solid as shown in the drawings or hollow in a U-shape when viewed from above. Retainer 31 need only fit through opening 29, therefore, it may be U-shaped such that the upper portion of retainer 31 mates with the channel formed by guide projection 30 and the bottom of retainer 31 conforms to the shape of the bottom of opening 29 as shown in FIG. 8.
Another alternative embodiment is shown in FIGS. 9 and 10 wherein a wall 18′ surrounds claw 18 and protects male terminals 14 from wall 21′ upon which protuberance 21 is mounted. Wall 21′, as shown, is connected to mating connector 20 at the top but not at the bottom. Thus, wall 21′ hangs and fits into the cavity made by wall 18′.
These, and other such modifications may be made without departing from the spirit or scope of the present invention, which is to be broadly construed and not to be limited except by the character of the claims appended hereto.
Claims (12)
1. An electrical connection box comprising a connector housing which mates with a mating connector, an engagement section on a first inside wall of said connector housing in engagement with said mating connector, a support section on said first inside wall or on a second inside wall of said connector housing, said second inside wall being remote from said first inside wall, a retainer in said support section, engaging said mating connector, and preventing said mating connector from slipping out of said connector housings said support section comprises an insertion opening said retainer comprising an elongated member having a cross section is substantially the same size as said insertion opening, said elongated member in said support section, extending through said insertion opening, and bearing against said mating connector, thereby retaining said mating connector in said connector housing;
said retainer comprises a pair of support plates spaced apart from each other in a direction transverse to an insertion direction of said retainer, and a connecting plate connecting said support plates to each other.
2. The electrical connection box of claim 1 wherein said engagement section comprises a claw on said first inside wall, there being a protuberance on an adjacent wall of said mating connector, said claw engaging said protuberance.
3. The connection box of claim 1 wherein there are two said support sections on said first inside wall or said second inside wall, said support sections being spaced apart from each other, said retainer in said support sections.
4. The connection box of claim 1 wherein there is a plurality of said support sections on said first inside wall or said second inside wall and spaced apart from each other, each said support section having one said insertion opening, said retainer extending through each said insertion opening.
5. The connection box of claim 1 wherein said mating connector has a restricting portion underlying said retainer, said retainer bearing against said restricting portion.
6. The connection box of claim 4 wherein there are two said support sections.
7. The connection box of claim 1 wherein said support section is on said second inside wall.
8. The connection box of claim 5 wherein each said support section has a pair of guide walls wherein said restricting portion is held.
9. The connection box of claim 1 wherein a guide projection partially occupies said insertion opening, thereby leaving a space in said insertion opening, said cross section being complementary to, and substantially the same as said space.
10. The connection box of claim 9 wherein said projection is an inverted trapezoid.
11. The connection box of claim 1 wherein said retainer has a flexible piece on said connecting plate, adjacent a positioning end of said retainer, said flexible piece including at least one stop which bears against guide walls in said support section when said retainer is in said support section.
12. The connection box of claim 11 wherein there are two stops, one on either side of the flexible piece.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10-372618 | 1998-12-28 | ||
JP37261898A JP3405245B2 (en) | 1998-12-28 | 1998-12-28 | Electrical junction box |
Publications (1)
Publication Number | Publication Date |
---|---|
US6176726B1 true US6176726B1 (en) | 2001-01-23 |
Family
ID=18500754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/471,351 Expired - Lifetime US6176726B1 (en) | 1998-12-28 | 1999-12-23 | Electrical connection box including a connector housing and mating connector |
Country Status (5)
Country | Link |
---|---|
US (1) | US6176726B1 (en) |
EP (1) | EP1017132B1 (en) |
JP (1) | JP3405245B2 (en) |
CN (1) | CN1259783A (en) |
DE (1) | DE69927122T2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4082296B2 (en) * | 2003-07-15 | 2008-04-30 | 住友電装株式会社 | Electrical junction box |
SG180051A1 (en) | 2010-10-28 | 2012-05-30 | Rockwell Automation Asia Pacific Business Ctr Pte Ltd | Display module for toolless coupling with programmable controller |
JP5602617B2 (en) * | 2010-12-28 | 2014-10-08 | タイコエレクトロニクスジャパン合同会社 | Connector member |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01294382A (en) * | 1988-05-20 | 1989-11-28 | Riyousei Denso Kk | Connector housing |
US5017147A (en) | 1989-05-15 | 1991-05-21 | Yazaki Corporation | Connectors with cover providing connection sequence control |
US5139432A (en) | 1990-07-25 | 1992-08-18 | Yazaki Corporation | Connector locking mechanism |
US5555487A (en) * | 1993-07-23 | 1996-09-10 | International Business Machines Corporation | Information processing apparatus having lockable modular subsystems |
US5681184A (en) * | 1995-02-09 | 1997-10-28 | The Whitaker Corporation | Connector with secondary locking and coupling mechanisms |
US5718596A (en) * | 1995-11-09 | 1998-02-17 | Yazaki Corporation | Connector engaging structure |
US5928013A (en) * | 1996-12-25 | 1999-07-27 | Yazaki Corporation | Compact sized connector for connecting male and female housings with a cam device |
US5975929A (en) * | 1997-06-27 | 1999-11-02 | Yazaki Corporation | Slidably fitting type connector |
US6045375A (en) * | 1997-06-27 | 2000-04-04 | Yazaki Corporation | Sliding insert type connector with assisting slider |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3216775B2 (en) * | 1995-02-10 | 2001-10-09 | 矢崎総業株式会社 | Connector with mating detector |
-
1998
- 1998-12-28 JP JP37261898A patent/JP3405245B2/en not_active Expired - Lifetime
-
1999
- 1999-12-23 US US09/471,351 patent/US6176726B1/en not_active Expired - Lifetime
- 1999-12-28 CN CN99127896A patent/CN1259783A/en active Pending
- 1999-12-28 EP EP99126090A patent/EP1017132B1/en not_active Expired - Lifetime
- 1999-12-28 DE DE69927122T patent/DE69927122T2/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01294382A (en) * | 1988-05-20 | 1989-11-28 | Riyousei Denso Kk | Connector housing |
US5017147A (en) | 1989-05-15 | 1991-05-21 | Yazaki Corporation | Connectors with cover providing connection sequence control |
US5139432A (en) | 1990-07-25 | 1992-08-18 | Yazaki Corporation | Connector locking mechanism |
US5555487A (en) * | 1993-07-23 | 1996-09-10 | International Business Machines Corporation | Information processing apparatus having lockable modular subsystems |
US5681184A (en) * | 1995-02-09 | 1997-10-28 | The Whitaker Corporation | Connector with secondary locking and coupling mechanisms |
US5718596A (en) * | 1995-11-09 | 1998-02-17 | Yazaki Corporation | Connector engaging structure |
US5928013A (en) * | 1996-12-25 | 1999-07-27 | Yazaki Corporation | Compact sized connector for connecting male and female housings with a cam device |
US5975929A (en) * | 1997-06-27 | 1999-11-02 | Yazaki Corporation | Slidably fitting type connector |
US6045375A (en) * | 1997-06-27 | 2000-04-04 | Yazaki Corporation | Sliding insert type connector with assisting slider |
Also Published As
Publication number | Publication date |
---|---|
JP2000195616A (en) | 2000-07-14 |
DE69927122D1 (en) | 2005-10-13 |
JP3405245B2 (en) | 2003-05-12 |
CN1259783A (en) | 2000-07-12 |
EP1017132B1 (en) | 2005-09-07 |
EP1017132A3 (en) | 2002-01-23 |
EP1017132A2 (en) | 2000-07-05 |
DE69927122T2 (en) | 2006-06-22 |
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